2023/12/29 by Zhi-Peng Xing, Xing, Zhi-Peng, Yu Ji Shi +5 · 1 citation
Physics and Astronomy · #Asymmetry #Baryon #Black Holes and Theoretical Physics #Bottom quark #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Hyperon #Nuclear physics #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Radiative transfer #Top quark
paper · pdf · doi:10.48550/arxiv.2312.17568
openalex publication_date 2023/12/29 · openalex created_date 2024/01/03 · openalex updated_date 2026/07/28
Motivated by recent experimental data on Σ+→ pγ at BESIII, we investigate a class of hyperon weak radiative decays. To estimate these processes, in our research, we employ a new type of light-front quark model with a three-quark picture for octet baryons. In the three-quark picture, with the use of SU(3)f and spin symmetries, we present a general form of the light front wave function for each octet baryon. By including contributions from the penguin diagram and W exchange diagram, we perform a complete calculation on the branching ratios (Br) and the asymmetry parameter (α) for hyperon weak radiative decay processes. Our results are helpful for discovering additional hyperon weak radiative decay processes in experimental facilities, and our research will promote the theoretical study of baryons.